Contacts of the strand formed by residues 587 - 590 (chain P) in PDB entry 1O18
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with THR 587 (chain P).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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469P ILE* 4.8 9.5 - - - +
566P GLN* 5.7 2.5 + - - +
574P LYS* 4.3 5.3 + - - +
580P SER* 3.7 26.2 - - - -
581P LEU 3.1 8.8 + - - +
582P VAL* 4.0 14.5 - - + +
586P GLY* 1.3 71.3 - - - -
588P VAL* 1.3 68.4 - - - +
589P ASP* 4.1 13.9 + - - +
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Residues in contact with VAL 588 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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467P PHE* 3.6 36.8 - - + -
468P GLU 5.4 0.2 - - - +
469P ILE* 4.1 14.6 - - + -
473P ASN* 3.5 31.4 - - + +
481P ASN* 4.2 6.3 - - - +
580P SER* 2.8 25.8 - - - -
581P LEU 2.9 13.0 + - - -
583P HIS* 3.8 6.5 - - + -
586P GLY 4.3 1.6 - - - +
587P THR* 1.3 78.1 - - - +
589P ASP* 1.3 64.0 + - - +
590P TYR* 3.5 33.4 - - + +
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Residues in contact with ASP 589 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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471P ASP 4.8 2.3 - - - +
473P ASN* 2.9 33.6 + - - +
568P PRO* 3.8 7.8 - - + +
569P LYS* 3.7 16.9 + - - +
574P LYS* 0.6 100.0 + - + +
576P GLU 5.5 4.7 - - - +
579P PHE 3.9 2.7 - - - -
580P SER* 3.4 20.0 + - - -
587P THR* 4.3 1.3 - - - +
588P VAL* 1.3 73.5 - - - +
590P TYR* 1.3 60.8 + - - +
591P ASN 4.1 0.2 + - - -
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Residues in contact with TYR 590 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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473P ASN* 3.4 17.5 - - + +
474P SER 4.1 7.4 - - - -
477P GLN* 4.0 7.0 - - + -
478P LEU* 3.4 41.2 - - + +
481P ASN* 3.1 16.3 + - - +
576P GLU 6.1 0.9 - - - -
578P HIS* 3.3 11.3 + - - +
579P PHE* 2.6 71.8 + + + +
581P LEU* 3.9 8.5 - - + -
583P HIS* 2.5 41.6 + - - -
588P VAL* 3.5 36.1 - - + -
589P ASP* 1.3 72.3 - - - +
591P ASN* 1.3 58.5 + - - +
592P ILE* 4.7 0.4 - - - -
595P TRP* 4.3 6.3 - + + -
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il